Comparison
QuickSilver Pro vs DeepInfra
DeepInfra is the budget-friendly option among DeepSeek resellers. QuickSilver Pro serves the latest DeepSeek V4 wave — V4 Flash at $0.06 / $0.18 for low-cost chat and V4 Pro at $0.70 / $2.10 for premium reasoning — with per-token cache pricing. Same OpenAI-compatible API, two-line migration.
At a glance
| Feature | QuickSilver Pro | DeepInfra |
|---|---|---|
| Catalog focus | Curated frontier + open models; 45 accept image input | DeepInfra60+ open models, vision, audio |
| Official V4 Flash 0731 | $0.06 / $0.18 | DeepInfraDifferent undated build |
| DeepSeek V4 Pro output | $2.10 / 1M | $2.60 / 1M |
| Cached input discount | Yes (V4 wave, Qwen, Kimi) | Yes |
| Embeddings / audio | No | Yes |
| Image generation | Nano Banana Pro (Gemini 3 Pro Image), Nano Banana 2.1, FLUX.2 Pro, FLUX.1 Schnell, SDXL Turbo, FLUX.2 Klein, Qwen Image 3.0, Seedream 5.0 Pro, Seedream 4, Bria FIBO 1.5, Bria FIBO 2.0, GPT Image 2, GPT Image 2.5 Flare and GPT Image 2.5 Sunburst | Yes |
| Dedicated deployments | No | Yes |
| OpenAI-compatible chat | Yes | Yes |
| Minimum top-up | $5 | $20 |
Pricing (per million tokens, USD)
Competitor list prices as published by each provider.No check date
| Model | QSP input | QSP output | DeepInfra input | DeepInfra output | vs. list | QSP vs DeepInfra · in / out | |
|---|---|---|---|---|---|---|---|
| DeepSeek V4 Flash 0731 | $0.06 | $0.18 | $0.09* | $0.18* | *different build | QSP $0.06 / $0.18 | DeepInfra $0.09* / $0.18* |
| DeepSeek V4 Pro | $0.70 | $2.10 | $1.30 | $2.60 | ~19% output | QSP $0.70 / $2.10 | DeepInfra $1.30 / $2.60 |
| Qwen3.6-35B-A3B | $0.05 | $0.70 | Comparable | Comparable | — | QSP $0.05 / $0.70 | DeepInfra Comparable / Comparable |
QSP columns come from the live catalog at build time; DeepInfra columns are the rates DeepInfra publishes. No check date is recorded for them.
Migration - two lines
Full migration guidefrom openai import OpenAI
client = OpenAI(
base_url="https://api.quicksilverpro.io/v1",
api_key=os.environ["QSP_KEY"],
)
r = client.chat.completions.create(
model="deepseek-v4.1-flash",
messages=[{"role": "user", "content": "Hi"}],
)The two changed lines are marked. Model IDs also change — see the 2 mappings in the guide.
FAQ
On the same V4 Pro model, QuickSilver Pro is $0.70 / $2.10 per 1M tokens versus DeepInfra's current $1.30/$2.60 rate — about 46% lower on input and 19% lower on output. DeepInfra's lower V4 Flash listing is an undated build, while QSP pins the official 0731 agent revision, so those rows are not a like-for-like price comparison.
Two lines: swap base_url to api.quicksilverpro.io/v1, use a new API key, and rename DeepInfra's current V4 model IDs to deepseek-v4-flash or deepseek-v4-pro.
Yes — cached-input tokens bill at a separate, lower cache-read rate on the DeepSeek V4 wave and the Qwen/Kimi models, so repeat prompts cost less than fresh input. Both providers discount cached input; benchmark effective per-request cost if cache-hit ratio is material for your workload.
Embeddings and audio transcription are not offered. Image generation is: Nano Banana Pro (Gemini 3 Pro Image), Nano Banana 2.1, FLUX.2 Pro, FLUX.1 Schnell, SDXL Turbo, FLUX.2 Klein, Qwen Image 3.0, Seedream 5.0 Pro, Seedream 4, Bria FIBO 1.5, Bria FIBO 2.0, GPT Image 2, GPT Image 2.5 Flare and GPT Image 2.5 Sunburst. And 45 of our 91 models accept image input.
Start with your own key
Change two lines. Compare current per-token prices before your first call.